Accessibility removes avoidable friction
Accessible design helps people with permanent, temporary and situational constraints understand and operate a website. Clear headings, visible focus, meaningful labels and sufficient contrast also make everyday journeys easier for people using small screens, poor connections or unfamiliar interfaces.
Accessibility is not a finishing plugin. When the underlying components, content model and editorial process ignore it, overlays cannot reliably repair keyboard order, semantics, form relationships or confusing instructions.
Design it into the system
Use semantic HTML, logical heading structure, keyboard-operable controls and text alternatives that convey purpose. Error messages should explain what happened and how to fix it, while media needs captions or transcripts when information depends on sound.
Give designers and editors reusable patterns for contrast, link text, tables, forms and motion. Respect reduced-motion preferences and avoid interactions that depend entirely on hover, colour or precise pointer movement.
- Use native elements before custom controls.
- Keep labels and instructions visible.
- Provide captions, transcripts and purposeful alt text.
- Include accessibility checks in design and QA.
Test people and tasks, not only rules
Automated testing catches useful classes of errors, but it cannot judge whether alternative text is meaningful or a process is understandable. Combine tools with manual keyboard testing, screen-reader checks and task-based reviews.
Prioritise high-value journeys such as contact, checkout, account access and applications, then expand coverage. Record issues and ownership so accessibility becomes part of normal maintenance rather than a one-time audit.